Finding the Fourth Proportional to 612,572.14, 918,901.98 and 163,290.70
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Solution
The fourth proportional to 612,572.14, 918,901.98 and 163,290.70 is: 244,947.72
Step by Step Solution
- Step 1: Write the proportion equation
612,572.14 : 918,901.98 = 163,290.70 : x - Step 2: Convert to fraction form
612,572.14/918,901.98 = 163,290.70/x - Step 3: Cross multiply
612,572.14x = 918,901.98 × 163,290.70 - Step 4: Simplify right side
612,572.14x = 150,048,147,545.59 - Step 5: Solve for x
x = 150,048,147,545.59/612,572.14 - Step 6: Final answer
x = 244,947.72
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.